Find the 54th term of the arithmetic sequence - 7,-23,-39

-855

Step-by-step explanation:

Find the 54th term of the arithmetic sequence - 7,-23,-39

The first term is a_1 = - 7

we see that the common difference = d = - 23 - (-7) = - 16

so the formula: a_n = (n - 1) * d + a_1

a_54 = (54 - 1) * (-16) + (-7)

a_54 = 53 * (-16) - 7 = - 848 - 7 = - 855